Comparison of end normal inspiration and expiration for gated intensity modulated radiation therapy (IMRT) of lung cancer. Academic Article uri icon

Overview

abstract

  • BACKGROUND AND PURPOSE: Gated delivery of radiation during part of the respiration cycle may improve the treatment of lung cancer with intensity modulated radiation therapy (IMRT). In terms of the respiration phase for gated treatment, normal end-expiration (EE) is more stable but normal end-inspiration (EI) increases lung volume. We compare the relative merit of using EI and EE in gated IMRT for sparing normal lung tissue. PATIENTS AND METHODS: Ten patients received EI and EE respiration-triggered CT scans in the treatment position. An IMRT plan for a prescription dose of 70 Gy was generated for each patient and at each respiration phase. The optimization constraints included target dose uniformity, less than 35% of the total lung receiving 20 Gy or more and maximum cord dose

publication date

  • May 1, 2005

Research

keywords

  • Lung Neoplasms
  • Radiotherapy
  • Respiration

Identity

Scopus Document Identifier

  • 20444401497

PubMed ID

  • 16086906

Additional Document Info

volume

  • 75

issue

  • 2